Lock mechanism for cell-doors.



J. H. VAN BORN & J. T. WHITEHOUSE,

LOCK MECHANISM FOR CELL moons.

APPLICATION FILED AUG. 18. 1913.

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J. H. VAN DORN & J. T. WHITEHOUSE.

LOCK MECHANISM FOR CELL DOORS.

APPLICAT ION FILED AUG 18. 1933- Patented Apr. 17, 1917 3 SHEETS-SHEET 2.

J. H. VAN DORN 81.1. T. WHITEHOUSE.

LOCK MECHANISM FOR CELL DOORS.

APPLICATION FILED AUG. 18, 1913.

L gl o Patented Apr. 17, 1917.

3 SHEETS-SHEET 3- UNTTED STATES PATENT JAMES H. VAN DOBN AND JOHN T. WHITEI-IOUSE, OF CLEVELAND, OHIO, ASSIGNORS TO THE VAN BORN IRON WORKS COMPANY, OF CLEVELAND, OHIO, A CORPORATION OF orrro.

Application filed August 18, 1913.

To all whom it may concern:

Be it known that we, JAMES H. VAN Donn and JOHN T. VvI-IITEHOUSE, citizens of the United States, and residents, respectively, of Cleveland, in the county of Cuyahoga and State of Ohio, have invented a certain new and useful Improvement in Look Mechanism for Cell-Doors, of which the following is a. full, clear, and exact descrip tion.

The object of this invention is to provide a strong, simply constructed lock which will automatically lock a cell door when the door is closed, and mechanism by which said lock can be unlocked from a distant station; also a lock and operating mechanism therefor which the prisoners cannot tamper with and render useless. The invention consists in the construction and combination of parts hereinafter described and pointed out in the claims and shown in the drawing, in which Figure l is a front elevation of cell construction in which the present invention is embodied. Fig. 2 is a sectional plan of the front of said cells. Fig. 3 is a front View of the look when the front plate of the lock case is removed. Fig. 4 is a sectional plan view showing parts within the lock case in the position they occupy when a cell door is locked. Fig. 5 is a similar plan view showing the position the parts occupy when the cell door is unlocked. Fig. 6 is a sectional view from the bottom of the lockcase. Fig. 7 is a sectional side view through the box casing above the cell doors showing the lock operating mechanism therein contained. Fig. 8 is a plan View of the lock operating and controlling mechanism showing the position it occupies when the cell door is opened. Fig. 9 is a similar view showing a part of the cell door and the lock controlling mechanism in the positions they occupy when the cell door is closed.

Referring to the parts by letters, A represents the lock case which is to be secured to the door jamb C, in such position that a notched bolt G carried by the cell door F will pass through a hole a in the edge of the lock case, to a position to be engaged by the latch B in said case.

This latch B is pivoted on a vertical pivot H, and it is provided with two lugs b which are adapted to enter notches g, 9 in the upper and lower edges of the bolt G. with in the latch case are springs which act to Specification of Letters Patent.

Patented Apr. 1L7, 1917..

Serial No. 785,273.

swing the latch forward,that is to say, in the locking direction.

In the lock case also is a bolt-hole guard D. This guard is in the form of an open frame which is pivoted 011 the same pivot H as that on which the latch is pivoted, and it is under the influence of springs cl tending to swing it forward into the position shown 1n Fig. 5 where it lies entirely across the hole a, and thereby prevents the introduction into the lock case of paper or any other foreign matter. The latch lies and operates within the open center of the bolt-hole guard.

Two rock shafts J and K are mounted in the lock case in front of the two swinging members 13 and D referred to, and these shafts extend upward out of the lock case through a hollow vertical member T into the box casing T which is above the door openings of the cell structure. The shaft J has fixed to it within the lock casing a cam arm which is adapted to engage the front face of the latch member and thereby swing it rearward into the bolt releasing position. The other rock shaft K has a cam arm 70 fixed to it for engagement with the front edge of one of the side members of the guard frame D, whereby when the rock shaft is turned, this frame will be swung rearward to a position to uncover the hole a in the case and thereby permit the entry of the bolt into the same. The same member which carries the cam arm 70 carries also a hook 70 Likewise the side member of the bolt-hole guard frame D has a hook d with which the hook is is adapted to interlock.

On the upper ends of the two shafts J and K are arms by which they may be operated and controlled. The arm 76 is fixed to the shaft K, and lies in the path of a rod 7 fixed to the cell door F. Likewise there is a spring 70 acting upon arm 70 and tending to turn the rock shaft K in that direction which will permit the bolt guard to swing forward over the bolt hole.

Fixed to the shaft J are two arms 1' and 7' The arm 7' is connected with a rod R, located in the box casing T before mentioned. This rod is connected with a cable m which extends over suitable guide sheaves down into the lock box S in the jailers corridor at the end of the row of cells, and there this cable is connected with an operating lever M. The other arm 7' is provided with a shoulder 7' so placed that a pivoted spring actuated trigger N may engage therewith.

If, for example, the door is closed and locked, the parts within the lock case will be in the position shown in Fig. 8. If, now, the attendant in the jailers corridor actuates the lever M in the lock box referred to he will, through the described cable m, rod R and arm j turn rock-shaft J in a direction such as will swing the latch B rearward and thereby release the bolt G. At the same time the arm 7' will be so turned that the.

trigger N will fly behind the shoulder 7' and thereby the rock-shaft J will be held in the described position, namely, the position in which the latch has released the bolt. When the door is opened and the bolt G withdrawn from the lock case, the guard frame D which had before been held back by engagement with said bolt will swing forward and so cover the bolt hole a. The arm 78 attached to the rock shaft in the box casing T will occupy the position relative to the adjacent parts likewise as shown in Fig. 9. Also the shaft K will be so turned by the operating spring 711 as to cause the en gagement of the two hooks (Z and k whereby the bolt hole guard is locked in the closed position.

When, now, the door is closed, the bar f will engage with arm k and will rock the rock shaft and so withdraw the guard plate from its position over the bolt opening; and thereby the bolt will be permitted to enter the lock case. hen the bolt is in the lock case and just as the door is fully closed this same bar f will strike the trigger N and will withdraw it from engagement with shoulders j*, and thereby spring 3' acting on arm y' will rock rock-shaft J so as to release the latch B from restraint, and thereupon the spring Z91 will move the said latch so that its lug b will enter the notches in the bolt.

It is apparent from the foregoing that when by the opening of a cell door its bolt G has been withdrawn from the lock case, the bolt hole guard will immediately and automatically be swung over the bolt hole, and so looked that the prisoner operating on the bolt hole guard cannot move it away from its position over said bolt hole. A prisoner therefore cannot stufl' paper or other refuse in the lock case and so render it useless.

Where there is a row of cells, each provided with the above described mechanism, there will be a plurality of rods It, and cables m. These are all in the box casing T and near the rear wall thereof. The hanger plate F of each cell door passes up into the box casing through a slot 25 in the bottom thereof. Prisoners frequently employ great ingenuity in rendering the cell located within the lock case, means for mov ing the latch in the bolt releasing direction, and independent means for moving the bolt hole guard to the open position.

2. In door locking mechanism, the combination of a' lock case having in one wall a hole for the passage of the belt, a spring actuated pivoted latch within'said lock case, a spring actuated pivoted bolt hole guarc located within the lock case, means for moving the latch in the bolt-releasing direction, and independent meansfor moving the bolt hole guard to the open position, two trains of mechanism extending out of the lock case t distant operating positions, one of said trains of mechanism having an operative connection with the means for moving the bolt hole guard to the open position, and one of said trains of mechanism having an operative connection with the means for moving the latch in the bolt releasing direction.

3. In door locking mechanism, the combination of a lock case having in one wall an opening for the passage of the bolt, with a spring actuated latch, and a bolt-hole guard, both pivoted within the latch case on the same pivot rod, the bolt-hole lard having an open center in which the latch is movable, means for moving the latch in the bolt releasing direction, means for moving the bolt-hole guard to the open position, a spring for moving said guard to the bolthole closing position, and means for locking said bolt hole guard in the bolt-hole closing positions.

4. In door locking mechanism, the combination of a lock case having in one wall an opening for the passage of the bolt, with a spring actuated latch pivoted within said case, a. spring actuated bolt-hole guard also pivoted within said case, a vertical rockshaft entering into the case and havin therein an arm for engagement with the bolt-hole guard to move it to the open position, and interlocking hooks, one carried by the bolt-hole guard, and one by said rockshaft, whereby the bolt-hole guard will be i i looked in the hole. closing position.

5. In door locking mechanism, the combination of a lock case having in one wall an opening for the passage of the bolt, with a spring actuated latch and a spring actu ated bolthole guard, both located within said case, two vertical rock shafts entering the case, one carrying an arm for engagement with the latch to open the same, and one carrying an arm for engagement with the bolt-hole guard to open it, an arm fixed to the rock-shaft which is associated with the latch, which arm is provided with a shoulder, a spring actuated trigger adapted to engage said shoulder to hold the latch in the bolt releasing position, an operating arm fixed to the upper end of the other rock shaft, a sliding door carrying a notched bolt adapted to enter the hole in the lock case, and carrying also a rod arranged to engage the arm attached to the shaft which operates the bolt-hole guard and to likewise engage said trigger.

6. In door locking mechanism, the com-- bin ation of a lock case having in one wall an evening for the passage of the bolt, with a spring actuated latch and a spring actuated bolt-hole guard, both located within said case, two vertical rock shafts entering the also, one carrying an arm for engagement with the latch to open the same, and one carrying an arm for engagement with the bolt-hole guard to open it, an arm fixed to the rock shaft which is associated with the latch, which arm is provided with a shoulder, a spring actuated trigger adapted to engage said shoulder to hold the latch in the bolt releasing position, an operating arm fixed to the upper end of the other rock shaft, a sliding door carrying a notched bolt adapted to enter the hole in the lock case, and carrying also a rod arranged to engage the arm attached to the shaft which operates the bolt-hole guard and to likewise engage said trigger, and springs operating on said two rock-shafts to turn them in the direction to move the bolt-hole guard in the hole closing direction and to move said latch to the bolt engaging position.

7. In door locking mechanism, the combination of a lock case having in one wall an opening for the passage of the bolt, with a spring actuated latch and a spring actuated bolt-hole guard, both located within said case, two vertical rock-shafts entering the case, one carrying an arm for engagement with the latch to open the same, and one carrying an arm for engagement with the bolt-hole guard to open it, an arm fixed to the rock shaft which is associated with the latch, which arm is provided with a shoulder, a spring actuated trigger adapted to engage said shoulder to hold the latch in the bolt releasing position, an operating arm fixed to the upper end of the other rock shaft, a sliding door carrying a notched bolt adapted to enter the hole in the lock case, and carrying also a rod arranged to engage the arm attached to the shaft which operates the belt-hole guard and to likewise engage said trigger, and springs operating on said two rock shafts to turn them in the direction to more said latch to the bolt engaging position, and interlocking hooks within the lock case carried by the bolt-hole guard, and the associated shaft for locking the bolt-hole guard in the hole closing position.

In testimony whereof, we hereunto affix our signatures in the presence of two witnesses.

JAMES H. VAN DORN. JOHN T. WHITEHOUSE.

Witnesses JOHN TOON, E. R. MATTHIAS.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G. 

